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. 2020 May 26;20:115. doi: 10.1186/s12893-020-00777-w

Fig. 4.

Fig. 4

Funnel plot of success rate; the funnel plot showed symmetrical distributions, suggesting that there was no evidence of publication bias in this pooled estimate. PDC, perventricular device closure; TDC, transcatheter device closure; CSR, conventional surgical repair